Southampton Remedi Hand Beats Hollywood
The Southampton Remedi-Hand is a a myoelectrically driven device (control signals are derived from a flexor tensor muscle pair) with independently driven fingers and a two axis thumb allowing the hand 6 degrees of freedom. The palm of the hand and fingers are made of a light weight epoxy carbon fiber making the total assembly weight less than 500g - even lighter than a real hand.
Dr Paul Chappell, a medical physicist from the University of Southampton in the UK, designed the prototype hand, which uses 6 sets of motors and gears so that each of the five fingers can move independently. This additional flexibility of movement provides a more complete emulation of human hand movement than other prosthetic devices. Dr Chappell remarks:
"With this hand you can clutch objects such as a ball, you can move the thumb out to one side and grip objects with the index finger in the way you do when opening a lock with a key, and you can wrap your fingers around an object in what we call the power grip – like the one you use when you hold a hammer or a microphone."
The Southampton Remedi-Hand also features a remarkably advanced feedback control system. Most prosthetic hands lack any intelligent feedback control system, requiring the user to rely on visual feedback to detect whether an object is slipping out of the hand or if an unnecessarily large force is being applied. The Remedi-Hand uses screen printed thick film piezoresistive resistors and piezoelectric dynamic sensors to provide a cheap and compact solution for detecting grip force and slip of an object from a prosthesis.
(Southampton Remedi-Hand Fingertip Control)
The Southampton Remedi-Hand uses a new type of fingertip that allows direct screen printing of thick-film sensors onto the surface. The fingertip has an array of thick-film sensors deposited on it to both measure the grip force exerted by the independently driven fingers and also to detect the onset of slippage of an object held in the hand. Two types of sensors used: piezoresistive thick-film sensors arranged to detect the force on the finger and piezoelectric thick-film sensors to detect the onset of slip.
Dr Chappell stated that "the aim is to create a hand with the sort of functionality a human hand has but also a sense of touch. This will let the hand know how tightly to grip an object like a coffee cup without dropping it, but not so tightly that it's crushed. It'll also have an integrated slip-sensor which will tell the hand if something is beginning to slip out of its grip so it can grip slightly harder. It'll be quite a clever system."
(Terminator Endoskeleton Hand and Arm)
Science fiction fans have been looking at very shiny robotic hands for a generation now, starting with the prosthetic device given to Luke Skywalker in Star Wars and the endoskeleton arm provided to Governor Schwarzenegger in the Terminator movies. If all goes well, the Southampton Remedi-Hand will be better than even Hollywood imagined.
Read more at the press release.
Scroll down for more stories in the same category. (Story submitted 9/8/2005)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 6 )
Related News Stories -
tDCS Jumpstarts Your Future
'We invented a scanner that can change the labyrinthine neural connections of the brain by tiny electronic impulses…'- Edmond Hamilton, 1948.
RealView Interactive Live Medical Holography
Surgeons can see an organ in its entirety in a live image.
Child Trafficked To Britain By Organleggers
'The doctor took him apart with exquisite care, like disassembling a flexible, fragile, tremendously complex jigsaw puzzle.'- Larry Niven, 1967.
Google Vs. Death
Who wants to live forever?
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Haute Cuisine On International Space Station
'The gas gave sufficient heat for the culinary apparatus...'
Tongue Mouse Created By Valve Engineer
'He pressed hard with his tongue against his right upper first molar.'
K5 Autonomous Data Machine The Future Of Mall Security
''Halt!' A robot guard appeared...'
RF Safe-Stop Shuts Cars Off
'...a police control-override.'
Army's New Bird-Like Surveillance UAV
'The prototype blue-bellied, gray-backed tracer-bird with the wide-angle eye...'
Honda's Tumblebug - The UNI-CUB beta
'A tumblebug does not give a man dignity...'
NASA's LADEE Enters Lunar Orbit
'... dust normally on the surface picks up and keeps a charge.'
3D Printing An Entire Car
"... Almost as good as the original it was printed from."
Aldebaran Robot Talks Like C3PO - Almost
'See Vee Threepio - Vee for versatility - at your service...'
Google's Skin Tattoo Lie Detector
'Three and a half centimetres in diameter, permanently fixed in the centre of his forehead.'
inFORM Dynamic Shape Output Device
Like that pushpin device you remember, but supercharged.
Owlet Vitals, The Future Of Baby Monitoring
'In every diaper there is a fine copper wire...'
Robert Heinlein, Your Personal Electric Helicopter Will Be Ready In 2016
"They were half way home when a single flyer, hopping free in a copter harness, approached the little parade."
WildCat Runs Faster Than You, Untethered
'...moving with such drifting ease that it was like a single solid cloud of black-grey smoke blown at him in silence.' Almost.
HiBot's ACM-R5H Robot Video Shows Graceful Terminator-Style Swimming
'No! No! Aaaaaaarrrrrrgh!'
tDCS Jumpstarts Your Future
'We invented a scanner that can change the labyrinthine neural connections of the brain by tiny electronic impulses...'.
More SF in the News Stories
More Beyond Technovelgy science news stories